Dear Richard
As a moderator I would not turf you all off. However the subject has drifted rather too far sideways after Steve Mandell's suggestion, and has gone a bit silly. But it has not been abusive, racist, sexist, or other ist that would require direct action by the moderator.
It would be nice for the originator of the subject if everybody could bring their discussions back to the original subject, If not I am happy to cut and paste the sidecar discussions into a new topic, so the silly discussions can continue in parallel with the serious discussion about identifying the out of focus information on an old photograph.
Chris Thomas